поискавой системы для электроныых деталей
  Russian  ▼
ALLDATASHEETRU.COM

X  

TPS2901 датащи(PDF) 5 Page - Texas Instruments

номер детали TPS2901
подробное описание детали  SIMPLE -48-V HOT SWAP CONTROLLER
Download  21 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
производитель  TI [Texas Instruments]
домашняя страница  http://www.ti.com
Logo TI - Texas Instruments

TPS2901 датащи(HTML) 5 Page - Texas Instruments

  TPS2901 Datasheet HTML 1Page - Texas Instruments TPS2901 Datasheet HTML 2Page - Texas Instruments TPS2901 Datasheet HTML 3Page - Texas Instruments TPS2901 Datasheet HTML 4Page - Texas Instruments TPS2901 Datasheet HTML 5Page - Texas Instruments TPS2901 Datasheet HTML 6Page - Texas Instruments TPS2901 Datasheet HTML 7Page - Texas Instruments TPS2901 Datasheet HTML 8Page - Texas Instruments TPS2901 Datasheet HTML 9Page - Texas Instruments Next Button
Zoom Inzoom in Zoom Outzoom out
 5 / 21 page
background image
TPS2390
TPS2391
SLUS471D − JUNE 2002 − REVISED JANUARY 2008
5
www.ti.com
DETAILED PIN DESCRIPTIONS (continued)
GATE: Gate drive for external N-channel FET. When enabled, and the input supply is above the UVLO
threshold, the gate drive is enabled and the device begins charging an external capacitor connected to the
IRAMP pin. This pin voltage is used to develop the reference voltage at the non-inverting input of the internal
LCA. The inverting input is connected to the current sense node, ISENS. The LCA acts to slew the pass FET
gate to force the ISENS voltage to track the reference. The reference is internally clamped at 40 mV, so the
maximum current that can be sourced to the load is determined by the sense resistor value as IMAX
≤ 40
mV/RSENSE. Once the load voltage has ramped up to the input dc potential, and current demand drops off, the
LCA drives the GATE output to about 14 V to fully enhance the pass FET, completing the low-impedance supply
return path for the load.
IRAMP: Programming input for setting the inrush current slew rate. An external capacitor connected between
this pin and −VIN establishes the load current slew rate whenever power to the load is enabled. The device
charges the external capacitor to establish the reference input to the LCA. The closed-loop control of the LCA
and pass FET acts to maintain the current sense voltage at ISENS at the reference potential. Since the sense
voltage is developed as the drop across a resistor, the charging current ramp rate is set by the voltage ramp
rate at the IRAMP pin. When the output is disabled via the EN input or due to a load fault, the capacitor is
discharged and held low to initialize for the next turn-on.
ISENS: Current sense input. An external low value resistor connected between this pin and −VIN is used to feed
back current magnitude information to the TPS2390/91. There are two internal device thresholds associated
with the voltage at the ISENS pin. During ramp-up of the load’s input capacitance, or during other periods of
excessive demand, the HSPM acts to limit this voltage to 40 mV. Whenever the LCA is in current regulation
mode, the capacitor at FLTTIME is charged to activate the timer. If, when the LCA is driving to its supply rail,
a fast-acting fault such as a short-circuit, causes the ISENS voltage to exceed 100 mV (the overload threshold),
the GATE pin is pulled low rapidly, bypassing the fault timer.
RTN: Positive supply input for the TPS2390/91. For negative voltage systems, the supply pin connects directly
to the return node of the input power bus. Internal regulators step down the input voltage to generate the various
supply levels used by the TPS2390 and TPS2391.
−VIN: Negative supply input and reference pin for the TPS2390/91. This pin connects directly to the input supply
negative rail. The input and output pins and all internal circuitry are referenced to this pin, so it is essentially the
GND or VSS pin of the device.


Аналогичный номер детали - TPS2901

производительномер деталидатащиподробное описание детали
logo
Texas Instruments
TPS20001C TI1-TPS20001C Datasheet
1Mb / 26P
[Old version datasheet]   Current-Limited, Power-Distribution Switches Deglitched Fault Reporting
logo
List of Unclassifed Man...
TPS2000B ETC2-TPS2000B Datasheet
873Kb / 14P
   Digital Storage Oscilloscopes
logo
TEKTRONIX, INC.
TPS2000B TEKTRONIX-TPS2000B Datasheet
815Kb / 14P
   Digital Storage Oscilloscopes
logo
Texas Instruments
TPS2000C TI1-TPS2000C Datasheet
1Mb / 26P
[Old version datasheet]   Current-Limited, Power-Distribution Switches Deglitched Fault Reporting
TPS2000C TI1-TPS2000C Datasheet
1Mb / 39P
[Old version datasheet]   Current Limited, Power-Distribution Switches
More results

Аналогичное описание - TPS2901

производительномер деталидатащиподробное описание детали
logo
Texas Instruments
TPS2390 TI-TPS2390 Datasheet
283Kb / 16P
[Old version datasheet]   SIMPLE-48-V HOT SWAP CONTROLLER
logo
Analog Devices
ADM1070 AD-ADM1070 Datasheet
367Kb / 16P
   -48 V Hot Swap Controller
REV. 0
ADM1070 AD-ADM1070_15 Datasheet
341Kb / 16P
   48 V Hot Swap Controller
REV. 0
ADM1073 AD-ADM1073_15 Datasheet
376Kb / 24P
   Full-Feature 48 V Hot Swap Controller
REV. B
logo
Texas Instruments
TPS2399DGKG4 TI1-TPS2399DGKG4 Datasheet
993Kb / 28P
[Old version datasheet]   -48-V HOT SWAP CONTROLLER FOR REDUNDANT-SUPPLY SYSTEMS
logo
ON Semiconductor
TPS2398 ONSEMI-TPS2398 Datasheet
363Kb / 15P
   -48 V Hot Swap Controller for Redundant Supply Systems
August, 2017 ??Rev. 0
logo
Linear Technology
LTC1642 LINER-LTC1642 Datasheet
147Kb / 12P
   Hot Swap Controller
LTC4218 LINER-LTC4218_15 Datasheet
318Kb / 18P
   Hot Swap Controller
LTC1421-2.5 LINER-LTC1421-2.5_15 Datasheet
334Kb / 24P
   Hot Swap Controller
LTC1421 LINER-LTC1421 Datasheet
464Kb / 24P
   Hot Swap Controller
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21


датащи скачать

Go To PDF Page


ссылки URL




Конфиденциальность
ALLDATASHEETRU.COM
Вашему бизинису помогли Аллдатащит?  [ DONATE ] 

Что такое Аллдатащит   |   реклама   |   контакт   |   Конфиденциальность   |   обмен ссыками   |   поиск по производителю
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com